black cow tongue

例句：

1. 1.The black cow tongue is a common sight in the countryside.
   黑牛舌头是乡村常见的景象。
2. 2.The black cow tongue was found in the river, which surprised everyone.
   黑牛舌头被发现在河里，这让大家感到惊讶。
3. 3.The black cow tongue has been used as a delicacy in some parts of China for centuries.
   黑牛舌头在中国的一些地区被用作数百年的美食。